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Electro-magnetic fields around a drifting Kerr black hole

Published online by Cambridge University Press:  01 November 2008

Ondřej Kopáček  and
Vladimír Karas
Ondřej Kopáček
Affiliation:
Astronomical Institute of the Academy of Sciences of the Czech Republic email: [email protected], [email protected]
Vladimír Karas
Affiliation:
Astronomical Institute of the Academy of Sciences of the Czech Republic email: [email protected], [email protected]
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Abstract

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A test field solution is constructed, describing the electromagnetic field around a Kerr black hole which is drifting in an arbitrary direction. An asymptotically uniform magnetic field is assumed with a general orientation (with respect to the rotation axis). Lines of force of electric and magnetic intensities are explored, as measured by an observer orbiting around the black hole (above the innermost stable circular orbit, ISCO) or freely falling (below the ISCO) down to the horizon. Magnetic null point is found.

Keywords

Black hole physics – magnetic fields – relativity
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S259: Cosmic Magnetic Fields: From Planets, to Stars and Galaxies , November 2008 , pp. 127 - 128
Copyright
Copyright © International Astronomical Union 2009

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